[OMPI users] Granular locks?

2010-10-01 Thread Gijsbert Wiesenekker
I have a large array that is shared between two processes. One process updates array elements randomly, the other process reads array elements randomly. Most of the time these writes and reads do not overlap. The current version of the code uses Linux shared memory with NSEMS semaphores. When ar

Re: [OMPI users] Potential developer to reinstate Xgrid support

2010-10-01 Thread Jeff Squyres
Just to +1 what Ralph Castain said: 1. If the work is non-trivial to fix the problem (i.e., more than a small patch), we'll need a signed third party contribution agreement before we can accept it. Sorry -- we absolutely have to keep the code base IP-clean. :-( ( (see http://www.open-mpi.org